Johnson was trying to restart his career and had a chance to be Miami's third tailback. Instead, Miami will go with Reggie Bush, Daniel Thomas and Lex Hilliard. Allen was prone to injuries in recent seasons, and his release could be a financial move. He was slated to make $1.5 million in 2011.
Miami also terminated the contract of starting fullback Lousaka Polite, which was a curious move. Fullbacks are decreasing in value in today's pass-happy NFL, but Polite was a popular player in Miami.
No-brainers: The Dolphins didn't like what they saw in backup quarterbacks Pat Devlin and Kevin O'Connell. Some NFL teams are going into the season with two quarterbacks. But the Dolphins probably will look for another player to develop behind starting quarterback Chad Henne and backup Matt Moore.
What’s next: Do not be surprised if the Dolphins are one of the teams in the market for a big name. Given Bush's durability questions and Thomas' rookie status, free-agent running back Chester Taylor should at least be up for discussion in Miami. The Dolphins do not need a primary tailback but could use someone proven to add stability. The New England Patriots also confirmed safety Brandon Meriweather's release on Saturday evening. He is an upgrade over what the Dolphins currently have and would provide an opportunity to take a good player from a division rival.